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    what is a rheostat? is it a variable resistor. If not, what is the difference?
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    (Original post by h_cube3000)
    what is a rheostat? is it a variable resistor. If not, what is the difference?
    An instrument used to regulate resistance in an eelctrical resist.

    In other words, rheostat is a more scientific term for a variable resistor really.
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    thanks bono!
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    (Original post by h_cube3000)
    what is a rheostat? is it a variable resistor. If not, what is the difference?
    A rheostat is a variable resistor. However, its symbol is different. If you are drawing an open circuit diagram (usually in electronics with a 9 V rail on top and a 0 V rail on the bottom) and you need a potential divider, then a rheostat is more handy. With closed diagrams (usually in physics) a variable resistor is suitable.

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    (Original post by bono)
    An instrument used to regulate resistance in an eelctrical resist.

    In other words, rheostat is a more scientific term for a variable resistor really.
    i think that variable resistor is the more scientific term.
 
 
 
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